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How many molecules of propane were in the erlenmeyer flask? Avogadro's number is 6. 022 × 10^23 molecules/mol

Sagot :

3.74×[tex]10^{21}[/tex]

3.74 ×[tex]10^{21}[/tex] molecules of propane were in the erlenmeyer flask.

number of moles of propane can be calculated as moles of propane.

mass of propane =  0.274 g

molar mass of propane = 44.1

So this gives us the value of 6.21×[tex]10^{-3}[/tex] moles of propane

No one mole of propane As a 6.0-2 × [tex]10^{23}[/tex]

so, 6.21 ×[tex]10^{-3}[/tex] × 6. 022 × 10^23

= 3.74 ×[tex]10^{21}[/tex]

Therefore, molecules of propane were in the erlenmeyer flask is found to be 3.74 ×[tex]10^{21}[/tex]

What is erlenmeyer flask?

  • A laboratory flask with a flat bottom, a conical body, and a cylindrical neck is known as an Erlenmeyer flask, sometimes known as a conical flask or a titration flask.
  • It bears the name Emil Erlenmeyer after the German chemist.

What purpose does an Erlenmeyer flask serve?

  • Liquids are contained in Erlenmeyer flasks, which are also used for mixing, heating, chilling, incubating, filtering, storing, and other liquid-handling procedures.
  • For titrations and boiling liquids, their sloped sides and small necks make it possible to whirl the contents without worrying about spills.

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